Regensburg 2025 – scientific programme

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O: Fachverband Oberflächenphysik

O 2: Tutorial: Do it Yourself Guide for Simulating Complex Magnetism: From Theoretical Foundations to Hands-on Spin-dynamics (joint session O/TUT)

Sunday, March 16, 2025, 16:00–18:15, H10

This tutorial is designed for students, early-career researchers, and anyone interested in the foundational principles and practical methods for simulating magnetic materials. The journey begins with an introduction to the fundamentals of spin lattice Hamiltonians and their various forms, including a detailed discussion of their derivation (Lecture 1). Next, we explore state-of-the-art techniques for extracting magnetic exchange interactions from first-principles calculations through an engaging overview (Lecture 2). The final session (Lecture 3) delves into atomistic spin-dynamics simulations using the SPIRIT code, a versatile tool compatible with both smartphones and laptops. Throughout, we will emphasize the theoretical framework underpinning these approaches. The participants will have the freedom to explore a large range of phenomena, such as domain walls, skyrmions, and their dynamics under applied currents or torques.

	16:00	O 2.1	Tutorial: Derivation of the spin-lattice Hamiltonian: Heisenberg, beyond Heisenberg, DMI, nematic exchange — •Hiroshi Katsumoto
	16:45	O 2.2	Tutorial: Computing magnetic exchange interactions using DFT — •Manuel dos Santos Dias
	17:30	O 2.3	Tutorial: Hands-on atomistic spin-dynamics simulations with Spirit — •Thorben Pürling and Moritz Sallermann